Device for forming wire stay-locks



(No Model.)

D. O. ADDIGKS. DEVICE FOR FORMING WIRE STAY LOCKS.

Patented Feb. 1, 1898.

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UNITED .STATEs FFICE PATENT DIELDRIGH C. ADDICKS, OF BRON SON, MICHIGAN, ASSIGNOR OF ONEJEIALF TO GEORGE COOK, OF BURR OAK, MICHIGAN.

DEVICE FOR FORMING WIRE STAY-LOCKS.

SPECIFICATION forming part of Letters Patent No. 598,131 dated February 1, 1898. Application filed June 10, 1897. Serial No. 640,211. (No model.)

To all wit-m it may concern.-

Be it known that I, DIEDRICH C. Anmcns, a citizen of the United States,residin g at Bronson, in the county of Branch and State of Michigan, have invented a new and useful Wire-Lock Former, of which the following is a specification.

This invention relates to a hand-machine for forming looks or fasteners from wire to be used subsequently as means for securing crossing wires in the construction of wire fencing. The machine in its construction combines a gage to insure the wire being cut in uniform lengths, a cutter, means for bending the wire into the required shape, and an ejector for removing the completed fastener or look, the parts being disposed so as to economize space and secure lightness, combined with efficiency and durability.

For a full'understanding of the merits and advantages of the invention reference is to be had to the accompanying drawings and the following description.

The improvement is susceptible of various changes in the form, proportion, and the minor details of construction without departing from the principle or sacrificing any of the advantages thereof, and to a full disclosure of the invention an adaptation thereof is shown in the accompanying drawings, in which- Figure 1 is a perspective View of a machine embodying the essential features of this invention. Fig. 2 is a longitudinal section showing the machine applied to a support and having a portion of the handle broken away, the dotted lines showing the positionof the parts when the lock is released from the machine after being formed. Fig. 3 is a detail perspective view of the base portion of the machine. Fig. 4 is a detail perspective view of the active end portion of the operatinglever. Fig. 5 is a detail view in elevation of the combined lock,former and ejector. Fig. 6 is a detail view of a stay-lock.

Corresponding and like parts are referred to in the following description and indicated in the several views of the drawings by the. same reference characters.

The machine comprises, essentially, three partsa base 1,,a combined lock former and ejector 2, and an operating-lever 3, fulcrumed to the base and constructed so as to actuate the operating parts in the manner presently to be described.

The base 1 is of oblong form and is provided with openings to receive fastenings or bolts, by means of which it is secured in a vertical position to a post or support 4, and is provided at its sides with ears 5 and at one end with parallel lugs 6. The central portion of the base is elevated and has a longitudinal slot 7, and vertical grooves 8 in transverse alinement are formed in the walls of the slot 7 and extend in parallel relation to receive the side members of the look when the latter is in course of, formation. The base has raised portions a short distance from the slot '7, which are notched at 9 to receive the wire preparatory to shaping the lock, said notches serving to hold the end portions in position while the initial bend is given thereto. A rib 10 projects along one ear 5 and constitutes a wall of the contiguous notch 9 and prevents the end of the wire from moving forward when giving the final shape thereto. A block 11 is secured to the base at a point diagonally opposite the vertical rib 10 and is of best-quality tool-steel highly tempered and constitutes the fixed. cutter and serves to prevent the rearward movement of the adjacent end of the wire blank when forming it into the required shape. An opening 12 is formed in one of the ears 5 and is in 'line with the notches 9 and receives the wire when feeding it into the machine, the said wire being limited in its movement by striking the inner face of the opposite ear and being properly positioned by entering the notches 9.

The combined lock former and ejector is of elbow form and is fulcrumed at or near the elbow between the parallel lugs 6. The arm 13, projecting about at right angles from the plane of the base, is adapted to be engaged by the operating-lever 3 when thrown back, so as to move the arm 14 away from the base andwithdraw it from the slot 7, whereby the IOC wire blank fed between the arm 14 and the ejector 15, so as to engage with the closed or folded end of the lock and disengage it from the machine when the lever 3 is thrown backward. base 1. is rounded to give a corresponding form to the closed end of the lock.

The operating-lever 3 is fulcrumed between the ears 5 upon a pin supported in openings formed therein and is provided at its active end with a carp 16 and a cutter 17, the latter being preferably a tempered-steel block fastened thereto and adapted to cooperate with the cutter 11 for severing the wire in the formation of the lock. The'cam 16 operates over the raised portion of the base having the slot The edge of the arm 14: facing the- 7 and between the elevated parts having the notches 9 and is intended to engage with the arm 14C and move it into the slot 7, thereby folding the wire blank extending across the slot, while at the same time the sidemembers of the staple or look are slightly bent, thereby facilitating the application of the lock to the fence when connecting the wires at the point of crossing. As the blank is folding the end portions are drawn into the grooves 8 and project at right angles from the elevated portion of the base, and their terminal ends are engaged by the parts of the cam 16 projecting beyond the sides of the arm 14 and are deflected, thereby giving to the finished staple or look the form presented in Fig. 6. In this connection it must be remembered that the end portions of the staple or look are longer than the width of the arm 14. opposite the grooves 8. Consequently they are engaged bythe cam 16 simultaneously with its finishing action upon the arm l i.

The wire from which the looks or fasteners are to be formed may be of suitable gage and is fed to the machine through the opening 12 and is shaped by moving the operatingdever so as to depress the arm 14 of the part 2. During the first part of the movement of the lever 3 the wire is severed by the cooperating cutters 11 and 17, and a continued movement of the lever depresses the arm 14 and bends the wire into the form of a staple, and the final movement bends the end portions of the side members comprising the staple, as clearly indicated in Fig. 6. The lever is now thrown backward and, engaging with the arm 13 of the part 2, withdraws the arm let from the slot 7 and releases the lock, which falls from the machine, thereby admitting of a repetition of the operation just described in the formation of subsequent looks or fasteners.

Having thus described the invention, what is claimed as new is 1. In a machine for forming stay-locks, the combination of a base having a slot and grooves in the sides of the slot, an elbowshaped fomer having an arm adapted to enter the said slot, and an operating-lever having a cam portion to engage with one arm of the said former to press it into the aforesaid slot to shape the lock, and adapted when thrown back to engage with the opposite arm of the former to withdraw the other arm from the slot, substantially as set forth.

2. In a machine for forming staydocks or fasteners, the combination of a base, a combined lock former and ejector cooperating withthe base for shaping thewireblank into the required form, and an operating-lever for moving the combined lock former and ejector positively in each direction vto form the lock and disengage it from the machine when completed, substantially as set forth.

3. In a machine for. constructing stay-locks for wire fencing, the combination of a base having aslot and grooves at the sides of the slot communicating therewith, a pivoted arm to operate in the said slot and bearing a finger or extensionto operate across the plane of the said grooves, and means for positively moving the pivotedarm in each direction to form the lock and disengage it fromthe machine when completed, substantially as set forth. I

4;. In a machine for forming stay-locks, the combination of a base having a slotted por tion, and having notched parts at each side of the slot, the walls of the slot being grooved, a pivoted arm 1 bearing a finger or extension forming an ejector and adapted to operate in the aforesaid slot and across the plane of the said grooves, and means for positively actuating the pivoted arm in each direction, sub

stantially as specified.

5. g In a machine for forming stay locks, the combination of a slotted base having grooves in the Walls of the slot, a former adapted to operate in the saidslot, and a lever having a cam portion for pressing the former into the said slot to shape the lock and projecting be yond the sides of the former to engage with and bend the side members of the lock in one continuous movement, substantially as set forth.

6. In a machine for forming stay-locks, the combination of a slotted base, a fixed cutter at one side of the slot, a pivoted former to operate in the slot, and an operating-lever provided with a cam portion for actuating the former and bearing a cutter to cooperate with the cutter of the base, substantially as set forth. 7

7. In a machine for forming stay-locks, the combination of a slotted base having notched portions at each side of the slot and a part at one side formed with an opening in line with the notches, a fixed cutter applied to the base, a pivoted former for working in the slot, and an operating-lever having a cam portion for actuating the pivoted former and bearing a cutter to cooperate with the cutter of the base substantially as set forth.

8. The herein-described hand-machine for forming stay-locks from wire, comprising a slotted base having notched portions at each side of the slot and side ears, one of the ears having an opening in line with the notched portions,a cutter applied to the base, an elbowformer provided with an ejector to operate in the slot of the base, and an operating-lever fulcrnmed between the said ears and provided with a cam portion to actuate the former, and having a cutter to cooperate with the cutter of the base, and adapted when thrown back to engage with the elbow-former and withdraw the arm bearing the ejector from the slotted portion of the base, substantially in the manner set forth for the purpose de- I0 scribed.

In testimony that I claim the foregoing as my oWnI have hereto affixed my signature in the presence of two witnesses. v

DIEDRIOH O. ADDIOKS.

Witnesses:

SETH MONROE, ,GEORGE SHAFFMASTER. 

